1. Resource use trends in extracorporeal membrane oxygenation in adults: An analysis of the Nationwide Inpatient Sample  
Bryan G. Maxwell, MD, MPH, Andrew J. Powers, MD, Ahmad Y. Sheikh, MD, Peter H.U. Lee, MD, MPH, Robert L. Lobato, MD, MS, Jim K. Wong, MD 
The Journal of Thoracic and Cardiovascular Surgery 
Volume 148, Issue 2, Pages e1 (August 2014)
DOI: /j.jtcvs
Copyright © 2014 The American Association for Thoracic Surgery Terms and Conditions

2. Figure 1
Cumulative national hospital charges (in millions of inflation-adjusted 2009 dollars) for ECMO admissions increased over the study period (test for trend P = .0016).
The Journal of Thoracic and Cardiovascular Surgery  , e1DOI: ( /j.jtcvs )
Copyright © 2014 The American Association for Thoracic Surgery Terms and Conditions

3. Figure 2
Overall number of ECMO admissions per year (no significant increase over time, test for trend P = .19). ECMO, Extracorporeal membrane oxygenation.
The Journal of Thoracic and Cardiovascular Surgery  , e1DOI: ( /j.jtcvs )
Copyright © 2014 The American Association for Thoracic Surgery Terms and Conditions

4. Figure 3
Total charges per admission (A) and length of stay (B) depicted as mean (solid lines) ± standard error (dotted lines). Both measures increased significantly over the study period (test for trend P = .0032 and P = .0321, respectively).
The Journal of Thoracic and Cardiovascular Surgery  , e1DOI: ( /j.jtcvs )
Copyright © 2014 The American Association for Thoracic Surgery Terms and Conditions

5. Figure 4
Relative frequency of ECMO use for each group, as a fraction of all ECMO admissions: post-cardiotomy (blue line), cardiogenic shock (red line), respiratory failure (orange line), lung transplant (purple line), and heart transplant (green line). ECMO, Extracorporeal membrane oxygenation.
The Journal of Thoracic and Cardiovascular Surgery  , e1DOI: ( /j.jtcvs )
Copyright © 2014 The American Association for Thoracic Surgery Terms and Conditions